Question

The cell voltage of a galvanic cell becomes zero after using for some tme because
A. All the free electrons are used up
B. Oxidation potential of the two half cell become different
C. Reduction potential of the two half cells become equal
D. Oxidation potentials of two half cells become equal in magnitude but opposite in sign.

Answer 1

Correct Answer - C
Since `E_("red")prop[M^(n+)]`
`therefore` when current is drawn the conc. Of eec trolytic solution changes and hence the reduction potential.